ENERGY SYSTEMS Exportinitiative Energieeffizienz Cooling and heating with solar power. Save energy. Cut costs. Raise yield. The patented aeteba ® SolarCooling system Vietnam, January 2013 Gernot Schäfenacker Consultant aeteba ® GmbH Side 1 von 19

ENERGY SYSTEMS Who we are Our products The prospects Side 2 von 19

ENERGY SYSTEMS Who we are… Side 3 von 19

ENERGY SYSTEMS Founded in employees 5 technologies registered for patent More patents in process Holistic energy concepts for sustainable energy supply First references e.g. Deutsche Telekom Side 4 von 19

ENERGY SYSTEMS Projects: Munich Ackermannbogen; 3.000m² solar thermal field, 6.000m³ hot water storage Munich district heating system; 8km piping Airport Munich; heat and power generation system Waste water disposal Munich; energy recycling with heat pumps SolarCooling; German school in Barcelona and office building Madrid Side 5 von 19

ENERGY SYSTEMS Our products… Side 6 von 19

ENERGY SYSTEMS What we offer: Modular Plug & Play SolarCooling & Heating system (prefabricated and tested) Stand alone or in combination with power and heat systems Complete planning, consulting, project controlling, management commissioning 25 years of experience in civil construction projects Complete energy concepts Side 7 von 19

ENERGY SYSTEMS The modular System: Advantages: Saves up to 85% electricity demand No Global Warming Potential No Ozone Depletion Potential No harmful impact to the enviroment Cooling with the heat of the sun Scalable to any size Factory approval incl. modular assembly Most simple integration Feasible in any building type *Picture shows a 10ft standard station with 50kW cooling power Side 8 von 19

ENERGY SYSTEMS Alone selling points Reduction of energy imports Reduction of electricity peaks Relief of networks Decentralized stand-alone energy supply Relief of environmentally Fast to implement Side 9 von 19 Ideal application area Every area where cold and hot water is needed all the year Hotels Sport, health club, pools Textile and plastic industry Brewery and food industry Hospitals Shopping malls Huge living complexes like cluster Greenhouses Office buildings Logistic centers

ENERGY SYSTEMS German school Barcelona Side 10 von 19

ENERGY SYSTEMS Energy concept: Hospital located in Ho Chi Minh City Number of beds: 160 Cooling load: 350 kW (20 kW constant load) Heating load potable water: 30 kW/h Hot potable water (>60°C): 14 m³/d Energy costs: 130 €/MWh electricity Price increase rate per year for energy: 9% Interest: 4,25%Inflation: 3,6% Side 11 von 19

ENERGY SYSTEMS StorageAbsorption chiller Backup Solar collector Recooler hospital Side 12 von 19

ENERGY SYSTEMS Primary energy savings: 369 MWh/a 43% Primary energy savings: 369 MWh/a 43% Carbon emission savings: 81 t/a 43% Carbon emission savings: 81 t/a 43% Side 13 von 19

ENERGY SYSTEMS Operation costs savings: €/a 63% Operation costs savings: €/a 63% Amortisation time: 6,5 years 1,1 Million € saved (20 years) Amortisation time: 6,5 years 1,1 Million € saved (20 years) Side 14 von 19

ENERGY SYSTEMS Prospects… Side 15 von 19

ENERGY SYSTEMS Our targets: First step: Realization of one or more Solar Cooling projects in Vietnam These first projects should be delivered with modules from Germany Second step: Cooperation with a manufacture in Vietnam, who builds the modules for the Asian market. Including the complete after sales business (maintenance etc.) Side 16 von 19

ENERGY SYSTEMS What we are looking for: Project developers Operators of industrial facilities and communal buildings Local partners Manufacturers of HVAC systems Industrial complexes Side 17 von 19

ENERGY SYSTEMS Thank you very much for your attention! Side 18 von 19

ENERGY SYSTEMS Your best solution based on know-how The aeteba ® SolarCooling-System aeteba ® GmbH Save energy. Cut costs. Raise yield. Gernot Schäfenacker Consultant Phone +49-(0)8031/ aeteba ® GmbH Spinnereiinsel 3d Kolbermoor GERMANY Tel.: +49-(0)8031/ Fax: +49-(0)8031/ Side 19 von 19